Pass reserved EDMA channel/slots as platform data for da830/omap-l137.
Signed-off-by: Sudhakar Rajashekhara <[email protected]>
---
arch/arm/mach-davinci/devices-da8xx.c | 25 +++++++++++++++++++++++++
1 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/devices-da8xx.c
b/arch/arm/mach-davinci/devices-da8xx.c
index 0a96791..e32579f 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -111,6 +111,29 @@ static const s8 da850_queue_priority_mapping[][2] = {
{-1, -1}
};
+/*
+ * The following EDMA channels/slots are not being used by drivers (for
+ * example: Timer, GPIO, UART events etc) on da830/omap-l137, hence they
+ * are being reserved for codecs on the DSP side.
+ */
+static const s16 da830_dma_rsv_chans[][2] = {
+ /* (offset, number) */
+ { 8, 2},
+ {12, 2},
+ {24, 4},
+ {30, 2},
+ {-1, -1}
+};
+
+static const s16 da830_dma_rsv_slots[][2] = {
+ /* (offset, number) */
+ { 8, 2},
+ {12, 2},
+ {24, 4},
+ {30, 26},
+ {-1, -1}
+};
+
static struct edma_soc_info da830_edma_info[] = {
{
.n_channel = 32,
@@ -118,6 +141,8 @@ static struct edma_soc_info da830_edma_info[] = {
.n_slot = 128,
.n_tc = 2,
.n_cc = 1,
+ .rsv_chans = da830_dma_rsv_chans,
+ .rsv_slots = da830_dma_rsv_slots,
.queue_tc_mapping = da8xx_queue_tc_mapping,
.queue_priority_mapping = da8xx_queue_priority_mapping,
},
--
1.5.6
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